Sewing machine attachment



Sept. 20, 1938. E. c. SHOUP ET AL SEWING MACHINE ATTACHMENT 2 Sheets-Sheet l I Filed Jan. 24, 1938 DI l w mql m [HI/EDITORS.

B. C. SHOUP a, oLn'cRflFzT.

flTTORHEY-S.

Sept. 20, 1938. E. CpSHOUP ET AL SEWING MACHINE ATTACHMENT Filed Jan. 24, 1938 2 Sheets-Sheet 2 m mulm IHYEHTORS: E. c. SHOUP .syBmH. OLLCRHFT BY Q .HY'TOHJYEYS,

Patented Sept. 20, 1938 SEWING MACHINE ATTACHMENT Edward C. Shoup and Sybil A. Hollcraft, Riverside, Calif.

Application January 24, 1938, Serial No. 186,737

2 Claims.

This invention relates to improvements in sewingmachine attachments, and has particular reference to a device for twisting material.

The principal object of this invention is to produce a device of this character that can be readily attached and detached from a sewing machine, and a device which will accommodate the material being twisted after the twist has been completed.

A further object of the invention is to produce a device of this character which is simple to manufacture, easy to apply and one which may be quickly removed when the operation has been completed.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout thesame,

Fig. 1 is a side elevation of our device, as the same would appear when attached to a sewing machine;

Fig. 2 is an end elevation of Fig. 1;

Fig. 3 is a cross sectional view taken on the line 3-3 of Fig. 1;

Fig. 4 is aside elevation of our device, showing the spool in cross section and partly removed;

Fig. 5 is an enlarged fragmentary detail view, showing the manner in which the twisted mate rial is attached to the spool;

Fig. 6 is a modified form of our device;

Fig. 7 is an end section of our device, looking from the left hand end thereof;

Fig. 8 is a modified form of our device, showing the sliding clips; and i Fig. 9 is an end view of Fig. 8, also looking from the left of the drawing.

There are many times when it is advantageous to twist material to form braid, carpet material and the like. This is sometimes done by fastening the ends of material to be twisted to a doorknob or similar fastening point, and to then twist the material by hand gradually walking away from the starting point as the twisted portion increases in length. This is a very tedious process, and does not give a uniform twist, and, therefore, We have produced a device that can be attached to the ordinary sewing machine hand wheel, and by rotating this hand wheel through the customary movement of the sewing machine, we are enabled to easily and accurately twist material to any desired length and with a minimum amount of efiort.

In the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of our invention, the numeral 5 designates the hand wheel of an ordinary sewing machine. Some of these hand wheels have a groove in the outer surface thereof, over which a belt runs, or in some instances, the electric driving motor may drive through the wheel contacting the rim of the wheel. We have, therefore, provided four openings 6 through the wheel, which openings receive the hooked ends I of arms 8 which are formed of four strands of wire twisted together, as at 9, and then formed with parallel sections II, and then further twisted together, as at l2. The parallel sections I l engage the inner surface of the spool hub I3. (See Figs. 3 and 4). This spool hub is provided with ends l4 and I6 and thus form an ordinary spool. A slot I! is formed in the end l4, and a hook I8 is secured adjacent thereto. When the spool is entirely upon the device the twisting point l2 projects beyond the outer surface of the spool of the end M.

In the modified forms shown in Figs. 6 and 7, the construction is identical with the exception that the hooked ends I of Fig. 1 are reversed, so that they engage the outer periphery of the whee1'5, as indicated at A. The same numerals have been applied for the remaining parts.

In the modified form shown in Fig 8. the only difference is that we use sliding clips l9 instead of the wire hooks l, and employ a twisting point B which corresponds to the twisting point [2 of the preferred form of our invention.

In use the device is attached to a fly wheel of a sewing machine, and the material to be twisted, as for instance the cord C of Fig. 5, is hooked over the hook I8 and brought through the slot l1 and into engagement with the twisting point I2. The machine is then started, and as a rule, the cord C will be twisted upon itself between the end of the spool and the point where it is being held by the fingers. As soon as this occurs,

the operator leaves the twisted part upon the 4 spool and then proceeds with a further twisting operation. Thus by rapid twisting a long length of twisted material may be easily formed.

It is to be understood that the form of our invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material, size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

Having thus described our invention, we

claim:

1. In a device of the character described, a

spool, means for securing said spool to a rotating member and in axial alignment therewith, said spool having a twisting point connected thereto and extending therefrom and in axial alignment with said spool, and means for holding material to be twisted by said spool, whereby rotation of 10 said spool willefiect a'twisting of the material.

2. In a device of the character described, a plu- 

